[1] Hlth Protect Agcy, TB Sect, London NW9 5EQ, England
[2] Univ E Anglia, Norwich Med Sch, Norwich NR4 7TJ, Norfolk, England
[3] N Univ Hosp, Infect Dis & Trop Med Unit, Marseille, France
[4] Ctr Dis Control & Prevent, Travelers Hlth Branch, Div Global Migrat & Quarantine, Atlanta, GA USA
[5] Ctr Dis Control & Prevent, Off Publ Hlth Preparedness & Response, Atlanta, GA USA
[6] Natl Inst Communicable Dis, Natl Hlth Lab Serv, Johannesburg, South Africa
[7] Sanofi Pasteur, Lyon, France
[8] WHO, CH-1211 Geneva, Switzerland
[9] Minist Hlth, Prevent Med Directorate, Riyadh, Saudi Arabia
[10] Alfaisal Univ, Coll Med, Riyadh, Saudi Arabia
[11] Dept Hlth & Human Serv, Atlanta, GA USA